Use of a video line amplifier/compensator (equalizer, EQ.) to pre-compensate for high frequency loss resulting from transmission of video signals over long cable distances (several hundred meters). Deterioration in the picture takes the form of loss of fine details and color distortion. Sometimes the entire video signal, including sync information, is severely attenuated. The analog line amplifier is usually installed at the beginning of the line. In the digital domain, a similar process is used – also called EQ., which employs high digital amplification stages and sometimes another process called reclocking, which is similar to analog TBC operation.
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